Select attachment
Features
- Superior Drilling Precision & Hole Quality: Optimized margin top positioning paired with an advanced three-margin structure ensures high-precision straight cutting and a flawlessly smooth surface finish.
- Exceptional Anti-Vibration & Optimized Chip Removal: The innovative combination of dissymmetrical irregular margins and unequal flute spacing (A≠B) effectively dampens machining vibrations while drastically improving chip evacuation efficiency.
Application
- Excel at working stainless steel, carbon steels (~HB225), alloy steels (HB225~325), pre-hardened steels (up to HRC45), hardened Steels (HRC40~45), and cast iron.
FEATURES
High-Precision CuttingDissymmetrical irregular margins -
☑️ Achieves smooth surface of drilling.
☑️Allow high precision straight cutting.
☑️Anti-vibration
☑️ Achieves smooth surface of drilling.
☑️Allow high precision straight cutting.
☑️Anti-vibration
Efficient Chip RemovalUnequal Flute Spacing - Anti-vibration and the chip removals are improved.
Enhanced Drilling PrecisionImproved the margin top position, to advance the drilling precision.
High-Performance Drill Selection Guide| Mode | Coolant Hole | Point Angle | Size Range | Drill Depth | Workpiece | |||||||
| 3xD | 5xD | 8xD | P | M | K | N | S | H | ||||
| 3SN | - | 140° | Ø3-16mm | ◯ | ◎ | ◯ | ||||||
| 5SN | - | 140° | Ø3-14mm | ◯ | ◎ | ◯ | ||||||
| 5SNC | ◯ | 140° | Ø3-14mm | ◎ | ★ | ◯ | ◯ | |||||
| 8SNC | ◯ | 135° | Ø3-12mm | ◎ | ★ | ◯ | ◯ | |||||
| Hardness(Hv) | ~3400 | |
| Thickness(μm) | 2~4 | |
| Oxidation Temp.(°C) | 900 | |
| Friction Coefficient | 0.3 | |
| Application | ||
| ◎ Excellent | Stainless steel | |
| ○ Good | Carbon steel, Alloy steel, Pre-hardened steel, Cast iron |
Specification
Max Effective Drill Depth(L1)= Flute Length(L2)-Diameter(d)*1.5
| Dimensions | ||||
| Mode | Diameter | Flute Length | Shank Diameter | Full Length |
| d | L2 | D | L | |
| 8SNC0302 | 3 | 35 | 6 | 80 |
| 8SNC0312 | 3.1 | 35 | 6 | 80 |
| 8SNC0322 | 3.2 | 35 | 6 | 80 |
| 8SNC0332 | 3.3 | 35 | 6 | 80 |
| 8SNC0342 | 3.4 | 35 | 6 | 80 |
| 8SNC0352 | 3.5 | 35 | 6 | 80 |
| 8SNC0362 | 3.6 | 40 | 6 | 85 |
| 8SNC0372 | 3.7 | 40 | 6 | 85 |
| 8SNC0382 | 3.8 | 40 | 6 | 85 |
| 8SNC0392 | 3.9 | 40 | 6 | 85 |
| 8SNC0402 | 4 | 40 | 6 | 85 |
| 8SNC0412 | 4.1 | 45 | 6 | 90 |
| 8SNC0422 | 4.2 | 45 | 6 | 90 |
| 8SNC0432 | 4.3 | 45 | 6 | 90 |
| 8SNC0442 | 4.4 | 45 | 6 | 90 |
| 8SNC0452 | 4.5 | 45 | 6 | 90 |
| 8SNC0462 | 4.6 | 50 | 6 | 95 |
| 8SNC0472 | 4.7 | 50 | 6 | 95 |
| 8SNC0482 | 4.8 | 50 | 6 | 95 |
| 8SNC0492 | 4.9 | 50 | 6 | 95 |
| 8SNC0502 | 5 | 50 | 6 | 95 |
| 8SNC0512 | 5.1 | 55 | 6 | 100 |
| 8SNC0522 | 5.2 | 55 | 6 | 100 |
| 8SNC0532 | 5.3 | 55 | 6 | 100 |
| 8SNC0542 | 5.4 | 55 | 6 | 100 |
| 8SNC0552 | 5.5 | 55 | 6 | 100 |
| 8SNC0562 | 5.6 | 60 | 6 | 105 |
| 8SNC0572 | 5.7 | 60 | 6 | 105 |
| 8SNC0582 | 5.8 | 60 | 6 | 105 |
| 8SNC0592 | 5.9 | 60 | 6 | 105 |
| 8SNC0602 | 6 | 60 | 6 | 105 |
| 8SNC0612 | 6.1 | 65 | 8 | 110 |
| 8SNC0622 | 6.2 | 65 | 8 | 110 |
| 8SNC0632 | 6.3 | 65 | 8 | 110 |
| 8SNC0642 | 6.4 | 65 | 8 | 110 |
| 8SNC0652 | 6.5 | 65 | 8 | 110 |
| 8SNC0662 | 6.6 | 70 | 8 | 115 |
| 8SNC0672 | 6.7 | 70 | 8 | 115 |
| 8SNC0682 | 6.8 | 70 | 8 | 115 |
| 8SNC0692 | 6.9 | 70 | 8 | 115 |
| 8SNC0702 | 7 | 70 | 8 | 115 |
| 8SNC0712 | 7.1 | 75 | 8 | 120 |
| 8SNC0722 | 7.2 | 75 | 8 | 120 |
| 8SNC0732 | 7.3 | 75 | 8 | 120 |
| 8SNC0742 | 7.4 | 75 | 8 | 120 |
| 8SNC0752 | 7.5 | 75 | 8 | 120 |
| 8SNC0762 | 7.6 | 80 | 8 | 125 |
| 8SNC0772 | 7.7 | 80 | 8 | 125 |
| 8SNC0782 | 7.8 | 80 | 8 | 125 |
| 8SNC0792 | 7.9 | 80 | 8 | 125 |
| 8SNC0802 | 8 | 80 | 8 | 125 |
| 8SNC0812 | 8.1 | 85 | 10 | 135 |
| 8SNC0822 | 8.2 | 85 | 10 | 135 |
| 8SNC0832 | 8.3 | 85 | 10 | 135 |
| 8SNC0842 | 8.4 | 85 | 10 | 135 |
| 8SNC0852 | 8.5 | 85 | 10 | 135 |
| 8SNC0862 | 8.6 | 90 | 10 | 140 |
| 8SNC0872 | 8.7 | 90 | 10 | 140 |
| 8SNC0882 | 8.8 | 90 | 10 | 140 |
| 8SNC0892 | 8.9 | 90 | 10 | 140 |
| 8SNC0902 | 9 | 90 | 10 | 140 |
| 8SNC0912 | 9.1 | 95 | 10 | 145 |
| 8SNC0922 | 9.2 | 95 | 10 | 145 |
| 8SNC0932 | 9.3 | 95 | 10 | 145 |
| 8SNC0942 | 9.4 | 95 | 10 | 145 |
| 8SNC0952 | 9.5 | 95 | 10 | 145 |
| 8SNC0962 | 9.6 | 100 | 10 | 150 |
| 8SNC0972 | 9.7 | 100 | 10 | 150 |
| 8SNC0982 | 9.8 | 100 | 10 | 150 |
| 8SNC0992 | 9.9 | 100 | 10 | 150 |
| 8SNC1002 | 10 | 100 | 10 | 150 |
| 8SNC1012 | 10.1 | 105 | 12 | 160 |
| 8SNC1022 | 10.2 | 105 | 12 | 160 |
| 8SNC1032 | 10.3 | 105 | 12 | 160 |
| 8SNC1042 | 10.4 | 105 | 12 | 160 |
| 8SNC1052 | 10.5 | 105 | 12 | 160 |
| 8SNC1062 | 10.6 | 110 | 12 | 165 |
| 8SNC1072 | 10.7 | 110 | 12 | 165 |
| 8SNC1082 | 10.8 | 110 | 12 | 165 |
| 8SNC1092 | 10.9 | 110 | 12 | 165 |
| 8SNC1102 | 11 | 110 | 12 | 165 |
| 8SNC1112 | 11.1 | 115 | 12 | 170 |
| 8SNC1122 | 11.2 | 115 | 12 | 170 |
| 8SNC1132 | 11.3 | 115 | 12 | 170 |
| 8SNC1142 | 11.4 | 115 | 12 | 170 |
| 8SNC1152 | 11.5 | 115 | 12 | 170 |
| 8SNC1162 | 11.6 | 120 | 12 | 175 |
| 8SNC1172 | 11.7 | 120 | 12 | 175 |
| 8SNC1182 | 11.8 | 120 | 12 | 175 |
| 8SNC1192 | 11.9 | 120 | 12 | 175 |
| 8SNC1202 | 12 | 120 | 12 | 175 |
TECHNICAL INSIGHTS
Founded in 1998, Speed Tiger is driven by the belief that technology creates value and quality builds trust. Aiming to be the leading Asian cutting tool manufacturer, we empower global manufacturers with high-efficiency tools to achieve superior quality and innovation. Our mission is to deliver cutting-edge expertise in tool design and manufacturing worldwide, grounded in integrity, quality, and customer satisfaction.
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